| 引用本文: | 赵蛟龙,孙龙泉,张忠宇,姚熊亮.航行体出水空泡溃灭载荷特性研究[J].哈尔滨工业大学学报,2014,46(7):81.DOI:10.11918/j.issn.0367-6234.2014.07.014 |
| ZHAO Jiaolong,SUN Longquan,ZHANG Zhongyu,YAO Xiongliang.Cavitation collapse load characteristic research in the out-of-water process of vehicle[J].Journal of Harbin Institute of Technology,2014,46(7):81.DOI:10.11918/j.issn.0367-6234.2014.07.014 |
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| 摘要: |
| 为计算出水过程中空泡溃灭载荷对航行体出水过程的影响,从空泡溃灭的物理现象入手,将空泡溃灭过程分为空泡运动阶段和空泡溃灭冲击阶段,在两个阶段分别用势流理论方法与双渐进方法进行计算,形成一套完整的空泡溃灭载荷计算方法. 在与相关试验值对比吻合较好,验证方法有效性的基础上,获得了空泡溃灭载荷及形态在整个出水过程中的变化规律. 最后研究了航行体弹性振动对航行体出水空泡溃灭载荷的影响,航行体弹性振动对溃灭冲击载荷的峰值及脉宽影响较小. |
| 关键词: 肩空泡 势流方法 非线性双渐进法 溃灭载荷 |
| DOI：10.11918/j.issn.0367-6234.2014.07.014 |
| 分类号:U661.1 |
| 基金项目:国防基础科研(B2420110011)； 中央高校基本科研业务费(HEUCFH0102). |
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| Cavitation collapse load characteristic research in the out-of-water process of vehicle |
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ZHAO Jiaolong, SUN Longquan, ZHANG Zhongyu, YAO Xiongliang
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(College of Ship Engineering, Harbin Engineering University, 150001 Harbin, China)
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| Abstract: |
| In this paper, the whole cavitation collapse process was divided into cavitation moving phase and cavitation collapse shock phase based on the physical phenomenon of cavitation collapse process, potential flow method and Nonlinear Doubly Asymptotic Approximation(NDAA) were respectively used to calculate the two stages to make a mechanical analysis of the whole process to study the effect of theload of cavitation collapse on the sailing body movement. A new method was established to calculate the load of cavitation collapse, and a whole calculation method on the load of cavitation collapse was established. By comparing the results of numerical calculation with the experiment, the reasonability of the method was validated. Based on it, the law of the load of the cavitation collapse and the shape of the cavitation were obtained. Finally, the effect of elastic vibration on the cavitation collapse was researched, and the elastic vibration had a little effect on the peak value and periods of the collapse load. |
| Key words: shoulder cavitation potential flow method NDAA cavitation collapse load |
